Boyfriend: "Um, actually a few of my friends are coming over to play Halo 2."
Girlfriend: "Fine go play your stupid sex box since you love it more than me!"
2. (verb) When a person you are dating or otherwise hooking up with (usually male) invites you over under the guise of playing video games and/or watching movies, but implicitly for the purpose of hooking up.
2. "Whatever happened to you and that Ryan guy?"
"We used to go out sometimes, but after a while he was just seXboxing me and I stopped going over to his place to 'hang out.'"